1U5M

Structure of a Chordin-like Cysteine-rich Repeat (VWC module) from Collagen IIA

SOLUTION NMR

---

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_NOESY	0.8mM U-15N exon2; 50mM phosphate buffer; 0.02% NaN3; 90% H2O, 10% D2O	90% H2O/10% D2O	50 mM potassium phosphate	6.0	ambient	298
2	HMQC-J	0.8mM U-15N exon2; 50mM phosphate buffer; 0.02% NaN3; 90% H2O, 10% D2O	90% H2O/10% D2O	50 mM potassium phosphate	6.0	ambient	298
3	2D NOESY	0.8mM U-15N exon2; 50mM phosphate buffer; 0.02% NaN3; 90% H2O, 10% D2O	90% H2O/10% D2O	50 mM potassium phosphate	6.0	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	GE	OMEGA	600
2	GE	OMEGA	750

NMR Refinement
Method	Details	Software
semi-automated assignment and torsion angle dynamics		CYANA

NMR Ensemble Information
Conformer Selection Criteria	target function
Conformers Calculated Total Number	600
Conformers Submitted Total Number	20
Representative Model	1,2 (closest to the average)

Additional NMR Experimental Information
Details	Sequential assignments were made using triple resonance techniques. Disulfide bond connectivity was determined using NOESY data acquired at different temperatures.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CYANA	1.0.6	Guntert, P.
2	refinement	CYANA	1.0.6	Guntert, P.